the question is. in the. picture so please look at that

b (13 points) Suppose Australia's By is negative. Based on our two-period economy model, we can conclude that Australia: (a) will have to run a trade balance deficit at some point. (b) will have to run a trade balance deficit in periods 1 and 2. (c) does not have to run a trade balance deficit at some point because it is an advanced country. (d) will have to run a trade balance surplus at some point in time. (e) will have to run a trade balance surplus in periods 1 and 2. (f) does not have to run a trade balance surplus at some point because it is an advanced country. Page 1 of 1